Enum UnwrapError 

pub enum UnwrapError {
    NoneValue {
        context: &'static str,
        location: Option<&'static str>,
        backtrace: Backtrace,
    },
    ResultError {
        source: Box<dyn StdError + Send + Sync>,
        context: &'static str,
        location: Option<&'static str>,
        backtrace: Backtrace,
    },
}

Custom error type for unwrap operations

Variants

NoneValue

Fields

context: &'static str

location: Option<&'static str>

backtrace: Backtrace

ResultError

Fields

source: Box<dyn StdError + Send + Sync>

context: &'static str

location: Option<&'static str>

backtrace: Backtrace

Implementations

impl UnwrapError

pub fn backtrace(&self) -> &Backtrace

Get the backtrace for this error

Trait Implementations

impl Debug for UnwrapError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for UnwrapError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for UnwrapError

fn source(&self) -> Option<&(dyn StdError + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.